同义句转换。

1. An elephant is stronger than a horse.

    A horse is_____ _____ _____ _____ an elephant.

2. Tom is very strong. He can lift the heavy box.

    Tom is _____ _____ _____ _____ the heavy box.

3. I was so amazed that I couldn't say a word.

    I was _____ amazed _____ say a word.

4. Kate works harder than me.

    I _____ work _____ _____ _____ Kate.

5. I have about thirty books. Mary has about fifty books.

    Mary has _____ books _____ me.